Dental dam

ABSTRACT

The coffer dam (10) incorporates a tapered bag (12) which surrounds a tooth. There is a row of projections (11) positioned along curved lines on the sides of the bag. The projections may be cut off to leave small holes. The bracket may consist of a flat approximately oval plate (13) with a raised rim (14) round the edge, formed in one piece with the bag.

FIG. 1 is a perspective view of our dental dam design;

FIG. 2 is an a top plan view thereof;

FIG. 3 is bottom plan view thereof;

FIG. 4 is a left-side elevation view thereof (the right-side elevation view being identical);

FIG. 5 is front elevation view thereof; and,

FIG. 6 is a rear elevation view thereof. 

The ornamental design for the dental dam, as shown and described. 